4091711825421 has 16 divisors (see below), whose sum is σ = 6612867597120. Its totient is φ = 2479825348560.

The previous prime is 4091711825417. The next prime is 4091711825423. The reversal of 4091711825421 is 1245281171904.

It is a happy number.

4091711825421 is a `hidden beast` number, since 4 + 0 + 9 + 17 + 11 + 82 + 542 + 1 = 666.

4091711825421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4091711825421 - 2² = 4091711825417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4091711825423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6888403450 + ... + 6888404043.

It is an arithmetic number, because the mean of its divisors is an integer number (413304224820).

Almost surely, 2^{4091711825421} is an apocalyptic number.

It is an amenable number.

4091711825421 is a deficient number, since it is larger than the sum of its proper divisors (2521155771699).

4091711825421 is a wasteful number, since it uses less digits than its factorization.

4091711825421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13776807513 (or 13776807507 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 4091711825421 in words is "four trillion, ninety-one billion, seven hundred eleven million, eight hundred twenty-five thousand, four hundred twenty-one".